#!/usr/bin/env python3
#-*- coding:utf-8 --
from flask import Flask
from flask import request

app = Flask(__name__)

@app.route('/',methods = ['GET','POST'])
def home():
    return '<h1>Home</h1>'

@app.route('/signin',methods=['GET'])
def signin_form():
    return '''<form action="/signin" method="post">
            <p><input name="username"></p>
            <p><input name="password" type="password"></p>
            <p><button type="submit">Sign In</button></p>
            </form>'''
# @app.route('/signin', methods=['GET'])
# def signin_form():
#     return '''<form action="/signin" method="post">
#               <p><input name="username"></p>
#               <p><input name="password" type="password"></p>
#               <p><button type="submit">Sign In</button></p>
#               </form>'''

# @app.route('/signin', methods=['POST'])
# def signin():
#     #需要从request对象读取表单内容地点
#     if request.form['username']=='admin' and request.form['password']=='password':
#         return '<h3>Hello,admin</h3>'
#     return '<h3>Bad username or password</h3>'


@app.route('/signin', methods=['POST'])
def signin():
    # 需要从request对象读取表单内容：
    if request.form['username']=='admin' and request.form['password']=='password':
        return '<h3>Hello, admin!</h3>'
    return '<h3>Bad username or password.</h3>'

if __name__=='__main__':
    app.run()